JPS6319417A - Bearing device - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The invention relates to a bearing device, in particular a spherical bearing device or a ball joint device.

(Prior art and its problems) A conventional ball joint device has a head portion forming a spherical socket, and a shank portion connected to the head portion and forming a female threaded hole.

The socket receives a spherical bearing member and the bore receives an externally threaded shank member.

It is known to those skilled in the art to assemble a bearing arrangement in two halves. For example, on July 17, 1973, Wacht
No. 3,746,408, issued to U.S. Pat. Set.

It is also known to cut threads by trench tapping or roll threading. Both of these methods require additional operations beyond the punching to form the half-parts. If you cut a screw with the hole upright, metal chips will remain and must be removed from the hole afterwards.

and U.S. Pat. 23rd Da? See US Pat. No. 99,240 to Ilsh.

(Another Means to Solve the Problems) The present invention provides a bearing device made of half-split joint members that have been subjected to the same punching process. The use of identical halves significantly reduces the cost of the bearing arrangement.

In a preferred embodiment, each half has an octagonal head portion defining a socket in one portion and a threaded semi-cylindrical inner surface connected to said head portion and defining a threaded hole in one portion. The shank portion includes a shank portion, and a peripheral portion from which a plurality of protrusions project from each other.

The halves are not secured by crimping or pleating the entire circumference of one half around the circumference of the other half; They are brought together by alternating folds over the sections. This alternating protrusion provides a strong connection and also allows for more precise alignment of the two halves.

The non-invention also includes: (1) the step of preparing the first and second thin metal plates;
) A head part formed by stamping both plates to form a socket in one part, a shank part connected to the head part and having a threaded semi-cylindrical inner surface, and a plurality of projections protruding from each other. (3) aligning the halves such that the head portion forms a socket and the shank portion forms an internally threaded hole; (4) engaging the halves by alternately folding the protrusions of each half over the peripheral portion of the other half so that the protrusions align the halves; A method of manufacturing a bearing device is provided, which includes a step of aligning the bearing device.

The advantage of this method is that instead of cutting the threads after the halves are connected, the threads are made simultaneously during the punching process of the halves, thus eliminating additional tapping and roll threading. There is no need to remove the hole later.

This also reduces manufacturing costs. Also, screws made by smeen are stronger than freshly tapped screws.

Other features and advantages of the invention will become apparent from the following detailed description and drawings.

EXAMPLES Before describing in detail embodiments of the invention, the following should be understood. That is, the present invention is not intended to limit its application to the details of construction and arrangement described in the following description or shown in the drawings. It should also be understood that the terminology and words used herein are for purposes of description only and are not intended to be limiting in any way.

A bearing device 10 embodying the invention is shown in the drawings. The bearing arrangement 10 comprises two substantially identical first and second halves 11,12.

The halves 11, 12 are preferably stamped using the same stamping method.

As best shown in FIG. 4, the first half 11 includes a first head portion 14 having a socket formed in one portion (
・Ru. In a preferred embodiment, the first half-split member 14
is a polygon, especially an octagon. In the preferred embodiment, the first head portion includes a circular hole 16 with a socket formed in one section. According to the structure shown, the winnow head portion 14 has the circular hole 16 as shown in FIGS.
It has a flange portion 18 that surrounds and extends outward.

The inner surface 20 of the flange portion 18 forms part of a sphere and further forms the socket.

The first half-split member 11 also has a shank portion 22 connected to the first head portion 14 . In a preferred embodiment,
A first shank portion 22 is connected to one side of the first head portion 14. The first shank portion 22 has an internally threaded hole 26 (see FIG. 5) adapted to receive an externally threaded shank member (not shown). ) is formed in one part and has a threaded semi-cylindrical inner surface 24.

The single-fold first half 9 member 11 has a plurality of first tabs 30 or first protrusions 30 that protrude into each other. In the preferred embodiment shown in FIG. 4, the first head portion 14 (17) other than the side (bottom in FIG. 4) connecting the first shank portion 22 has at least one side extending therefrom. The first protrusion 30 of
has. In particular, in the structure shown, the first head portion 1
Each of the five side surfaces having an outer end of the shape 5X has one first protrusion 30 extending therefrom as well. In FIG. 4, the tabs 30 or protrusions 30 are shown extending laterally from the periphery 28. In FIG. 3, the tabs 30 are shown extending inwardly. .

As shown in FIG. 4, the tabs 30 define spaces between adjacent tabs 300, and each tab 30 has a width (ie, a dimension along peripheral portion 28) that is approximately equal to the width of the opposing space. In other words, if the first half member 1
When 1 is folded 1 along its vertical centerline, each tab 30 fits into a space on the other side of half 11 and fits neatly between tabs 30 and 3o forming that space. .

As mentioned above, the second half 12 is identical to the first half 11. The second half 12 has a second head portion 32, a second shank portion 34, and a second peripheral portion 36. The second head portion 32 is identical to the first head portion 14 and the second shank portion 34 is identical to the first shank portion 22.
and the second peripheral portion 36 is the same as the first peripheral portion 28. The first head portion 32 has a circular hole 38 (
1) and a flange portion 40, both of which also form a socket. Second peripheral portion 36 has a second tab 42 or projection 42 extending therefrom.

The first half member 11 and the second half member 12 are fixed to each other, the inner surfaces of the two half members face each other, and the first shank portion 22 and the second shank portion 34 are connected to the above-mentioned female screw hole 2.
6 and a circular hole 16.38 and an outwardly extending flange portion 14.40 forms a socket. First protrusion 3
0 is bent alternately onto the second peripheral edge portion 36 and the second protrusion 42 is bent over the first peripheral edge portion 28, and the first protrusion 30 and the second protrusion 42 are bent over the half member 11 and the half member. 12 years of marriage and half of the above! 11 parts are precisely aligned with each other. This is best shown in FIGS. 1, 2, and 5. The first half 9 member 11 and the second half member 12 are identical and opposite the protrusion or tab. Since the above-mentioned relationship exists between the spaces where the protrusion 3o
As shown, the protrusions 420 may be interposed, or the protrusions 42 may be disposed between the protrusions 300. By fitting the tabs 30 and 420 again in this way, the half member 1
1.12 can be matched accurately.

This method of interlocking protrusions provides greater strength and integrity than the traditional method of folding the entire perimeter of one half around the perimeter of the other half. can be obtained. In practice, this superior degree of alignment allows each half to be threaded separately, rather than being slid together and then threaded afterwards.

The bearing arrangement 10 also includes a bearing member 44 pivotally received within the socket.

In a preferred embodiment, the bearing member 44 has a generally spherical body 46 and a bilaterally projecting projection 48 which extends into each of the circular holes 16 and 38 in the head portion of the half or member. It's in.

1, the bearing member 44 includes a generally cylindrical passageway 50 extending through the body 46 and projection 48 thereof. Said passage 5
0 is adapted to slidably and rotatably receive a rod (not shown) for connection to the aforementioned shank portion.

Preferably, the first and second halves 11.12 are made by the method of the invention. According to this method, the two halves 11, 12 are formed separately by a four-way stamping process and then secured together by placing the bearing member in a socket between them.

In particular, the method comprises the steps of forming a first half 11 and forming a second half 12. Preferably, the halves are formed by conventional stamping methods, particularly progressive die stamping methods. In this punching process, the 1st and 20th halves! ll'5! The I material 11.12 is completely formed. That is, each half is formed with a head portion, a shank portion having a threaded semi-cylindrical inner surface, and a peripheral portion having a plurality of spaced apart protrusions. Once this operation has been completed, the half-jers 11.12 are produced as shown in FIG. 3, with the tabs facing inward.

The method also includes a first half 9 member 11 and a second half member 1.
2 so that head portion 14.32 forms a socket and shank portion 22.34 forms an internally threaded hole 26. The method also includes the steps of placing a bearing member 44 into the socket, folding the first projection 30 over the second peripheral portion 36 and bending the second projection 42 over the first peripheral portion 36.
8 and the first protrusions 30 alternately, the protrusions 30.
42 includes the step of assembling the first and twentieth halves 9 by aligning the first and second halves 11, 12 with each other. The first bending of the protrusion
The best ↓ is shown in Figure 2 and Figure 5.

[Brief Description of the Drawings] Figure 1 is a partially cutaway front view of the bearing device of the present invention;
FIG. 2 is a side view of the bearing device, FIG. 3 is an exploded perspective view of one of the molded half-split members and the spherical bearing member, FIG. 4 is an inner view of one of the molded half-split members, and FIG. 5 is an analytical view of boat 5-5 in FIG. 10... Bearing device 11.12... Half member 14... First head portion 16... Circular hole 18
...Flange portion 20...Inner surface 22...First shank portion 24...Semi-cylindrical inner surface 26...Female screw hole 28...First peripheral portion 30...Protrusion, tab 32... Second head portion 34... Second shank portion 36... Second peripheral portion 38... Circular hole 40... Flange portion 42... Second protrusion 44... Bearing member 46... Main body
48...Protrusion 50...Cylindrical passage (4 people outside)

Claims (21)

[Claims] (1) a first head portion forming a socket in one portion; a first shank portion connected to the first head portion;
a first half member having a first peripheral portion projecting a plurality of spaced apart first projections; a second head portion aligned with the first head portion to form the socket; a second shank portion connected to the second head portion and aligned with the first shank portion; and a second peripheral portion projecting a plurality of second projections separated from each other; and a second half member substantially identical to the member, the first projection being folded over the second peripheral portion and the second projection being folded over the first peripheral portion, alternately; A bearing device characterized in that the first protrusion and the second protrusion combine and align both half members with each other. 2. A bearing arrangement according to claim 1, wherein each of said shank portions has a threaded semi-cylindrical inner surface such that said shank portion defines an internally threaded hole adapted to receive an externally threaded member. . (3) The bearing device according to claim 1, further comprising a bearing member pivotally received in the socket. 4. A bearing arrangement according to claim 3, wherein said head portion has aligned circular holes forming said socket. 5. The bearing arrangement of claim 4, wherein said bearing member has a generally spherical body and opposed projections extending through each of said circular holes. 6. The bearing apparatus of claim 5, wherein said bearing member has a generally cylindrical passage extending through said protrusion and said body. (7) The bearing device according to claim 1, wherein each of the head portions is polygonal. (8) each of the head portions has eight sides;
8. A bearing arrangement according to claim 7, wherein said cooperating shank portion is connected to one of said side surfaces. 9. A bearing arrangement according to claim 8, wherein each of the other seven sides of each of said head portions has at least one cooperating projection projecting therefrom. (10) The bearing assembly according to claim 1, wherein each of the half members is stamped from a thin metal plate. 11. The bearing assembly of claim 10, wherein each of said shank portions has a threaded interior surface for forming an internally threaded hole adapted to receive an externally threaded member. (12) a first octagonal head portion forming a socket in one portion; a first shank portion connected to the first head portion and having a threaded semi-cylindrical inner surface; a first half having a first peripheral portion projecting a projection; and a second octagonal head portion aligned with the first head third to form the socket;
a second shank portion connected to the second head portion and aligned with the first shank portion and having a threaded semi-cylindrical inner surface for forming an internally threaded hole; a second circumferential edge portion;
and a second half member substantially identical to the half member, the first projection being bent over the second peripheral portion and the second projection being bent over the first peripheral portion in an alternating manner. A bearing member characterized in that the first protrusion and the second protrusion engage the half-split members and align the half-split members with each other. (13) The bearing device of claim 12, further comprising a bearing portion pivotally received in the socket. 14. The bearing arrangement of claim 13, wherein each of said head portions has a matching circular hole defining said socket. (15) The bearing device according to claim 14, wherein the bearing member has a generally spherical body and opposed protrusions through which each of the circular holes passes. 16. The bearing device of claim 15, wherein said bearing member has a generally cylindrical passage extending through said protrusion of said body. 17. The bearing device of claim 12, wherein each of the other seven sides of the head portion has at least one cooperating protrusion projecting therefrom. (18) The bearing device according to claim 12, wherein each of the half members is punched out of a thin metal plate. (19) forming a first half member having a first head portion forming a socket in one portion; and a first shank portion connected to the first head portion and having a threaded semi-cylindrical inner surface; a second head portion partially forming the socket; a second shank portion connected to the second head portion and having a threaded semi-cylindrical inner surface; forming two half members; aligning the first half member and the second half member to form the socket in the head portion and the female threaded hole in the shank portion; A method for manufacturing a bearing device, comprising: tightening a half member to the half member. (20) The first-mentioned forming step includes the step of forming the first half member so as to have a first peripheral portion from which a plurality of separated first protrusions protrude, and the second-mentioned forming step A second process in which a plurality of second projections separated from each other are made to protrude
forming the second half member to have a peripheral edge portion, the tightening step folding the first protrusion onto the second circumferential edge portion and bending the second protrusion into the first protrusion;
Claims include the step of folding the first protrusions alternately over the peripheral edge portions so that the first protrusions and the second protrusions tighten the two half members together so that the two half members can maintain alignment with each other. The method according to item 19. (21) Claim 20, wherein the first mentioned forming step includes a step of punching out the first half member, and the second mentioned forming step includes a step of punching out the second half member. the method of.